President Barack Obama will impose even steeper cuts on greenhouse gas emissions from U.S. power plants than previously expected, senior administration officials said Sunday, in what the president called the most significant step the U.S. has ever taken to fight global warming.

Vice President Joe Biden's associates have resumed discussions about a 2016 presidential run after largely shelving such deliberations during his son's illness and following his death earlier this year. But Biden has yet to tell his staff whether he will run or personally ask them to do any planning...

A grand jury has indicted Texas Attorney General Ken Paxton on felony securities fraud charges that accuse the Republican of misleading investors before he took over as the state's top law enforcement officer, a special prosecutor said Saturday.

A Palestinian teenager died of wounds Saturday sustained a day earlier during a West Bank protest against an arson attack on a Palestinian family that killed a toddler and critically injured his parents and brother.

Zimbabwe has suspended the hunting of lions, leopards and elephants in an area where a lion popular with tourists was killed, and is investigating the killing of another lion in April that may have been illegal, the country's wildlife authority said Saturday.

Now that Beijing has been chosen as the city to host the 2022 Winter Olympics, it faces a number of obstacles -- outrage over human rights abuses, its strangling pollution and a problem very specific to the season: Where is a city notorious for bone-dry winters going to get enough snow?

It took Ted Cruz three months to raise $10 million for his campaign for president, a springtime sprint of $1,000-per-plate dinners, hundreds of handshakes and a stream of emails asking supporters to chip in a few bucks.

A New York high school teacher on a cross-country bicycle trip was killed on an Oklahoma highway when he was struck by a car whose driver acknowledged looking at her cellphone at the time, authorities said.

Two University of Cincinnati police officers who arrived on the scene seconds after a white colleague fatally shot an unarmed black man will not face charges of lying about what they saw, prosecutors said Friday.

The Texas trooper who arrested Sandra Bland after a confrontation that began with a traffic stop was once cautioned about "unprofessional conduct" in a 2014 incident while he was still a probationary trooper, according to documents released Friday.

Journalists arriving this week to the Indian Ocean island Reunion to report about the discovery of a jet wing fragment were met with another spectacular sight: the eruption of one of the Earth's most active volcanoes.

The governing body of world sailing says it will start doing its own independent testing for viruses in Rio's Olympic waters after an Associated Press investigation showed a serious health risk to athletes competing in venues rife with raw sewage.

Suspected Jewish assailants set fire to a West Bank home on Friday and burned a sleeping Palestinian toddler to death in an attack that drew Palestinian rage and widespread Israeli condemnation. The attack, which threatens to set off another violent escalation, shines a light on the growing lawlessness...

Newly released evidence in the investigation of last fall's crash of an experimental spaceship over the Mojave Desert is raising questions about whether federal aviation regulators are protecting the public as companies launch more rockets.

After hundreds of rescue workers fanned out across a massive swath of the Atlantic for a full week, the Coast Guard's search for two teenage fishermen ended Friday, a heart-rending decision for families so convinced the boys could be alive they're pressing on with their own hunt.

A federal judge on Friday blocked the release of any recordings made at meetings of an abortion providers' association by an anti-abortion group that previously revealed secretly recorded videos of a Planned Parenthood leader.

Hillary Rodham Clinton is in "excellent physical condition and fit to serve as president," her physician declared Friday — just one in a flood of disclosures about the Democratic presidential candidate pushed out by her campaign on a busy summer day.